1. Stulberg, C. S., Coriell, L. L., Kniazeff, A. J. and Shannon, J. E.: The animal cell culture collection. In Vitro, in press.
2. Brand, K. G. and Syverton, J. T.: Immunology of cultivated mammalian cells. 1. Species specificity determined by hemagglutination. J. Nat. Cancer Inst.24:1007–1019, 1960.
3. Coombs, R. R. A., Daniel, M. R., Gurner, B. W., and Kelus, A.: Recognition of the species of origin of cells in cultures by mixed agglutination. Use of antisera to red cells. Immunology 4:55–66, 1961.
4. Stulberg, C. S., Simpson, W. F., and Berman, L.: Species-related antigens of mammalian cell strains as determined by immunofluorescence. Proc. Soc. Exp. Biol. Med. 108: 434–439, 1961.
5. Furminger, I. G. S.: Analysis of intracellular antigen to determine the species of origin of cells. J. Path, and Bact. 89:337–342, 1965.